Nonlinear evolution of dark matter and dark energy in the Chaplygin-gas cosmology
Astrophysics
2008-11-26 v4 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
The hypothesis that dark matter and dark energy are unified through the Chaplygin gas is reexamined. Using generalizations of the spherical model which incorporate effects of the acoustic horizon we show that an initially perturbative Chaplygin gas evolves into a mixed system containing cold dark matter-like gravitational condensate.
Cite
@article{arxiv.astro-ph/0307214,
title = {Nonlinear evolution of dark matter and dark energy in the Chaplygin-gas cosmology},
author = {Neven Bilic and Robert J. Lindebaum and Gary B. Tupper and Raoul D. Viollier},
journal= {arXiv preprint arXiv:astro-ph/0307214},
year = {2008}
}
Comments
11 pages, 3 figures, substantial revision, title changed, content changed, added references, to appear in JCAP